.update
  = error_messages_for :article
  - form_for(@article) do |f|
    %fieldset
      %legend Editing Article
      %div
        %label{ :for=>"title"} Title
        %br/
        = f.text_field :title
      %div
        %label{ :for=>"body"} Body
        %br/
        = f.text_area :body
      %div
      = f.submit 'Update'